iiMash&reg; Mini DisplayPort Thunderbolt Mac to DVI VGA HDMI TV Adapter cable 3 in1 for MacBook iMac Mini Display port The adapter seamlessly connect Mac Book, Mac Book Pro, or Mac Book Air with a Mini display port to high definition displays. Support HDMI, DVI or VGA input port You can connect the display to one of HDMI/DVI/VGA output ports. Support audio output. When connecting the iMac (Late 2009) and Mac Book Pro (Mid 2010) to HDMI display, please set Sound on the dialog box of System Preferences to get audio output Only one of the 3 outputs could be used at a time, you cannot use all of them simultaneously Powered from Mini Display Port source.